Westlake Corporation filed a Form 8-K with the U.S. Securities and Exchange Commission on November 4, 2026, announcing the release of its 2026 third quarter results of operations and financial condition.

Key Highlights

  • Filing date: November 4, 2026, covering the 2026 third quarter results of operations and financial condition.
  • Press release: Westlake Corporation issued a press release on November 4, 2026, announcing its 2026 third quarter results, furnished as Exhibit 99.1.
  • Conference call: The company held a conference call on November 4, 2026, to discuss its 2026 third quarter results, with details included in the press release.
  • Investor presentation: An investor presentation regarding the 2026 third quarter results was furnished as Exhibit 99.2.
  • Signing officer: The filing was signed by Jean-Marc Gilson, President, Chief Executive Officer and Director, identified as Principal Executive Officer.
  • Exchange listings: Common Stock (NYSE:WLK) and 1.625% Senior Notes due 2029 (symbol WLK29) are both listed on the New York Stock Exchange.

Westlake Corporation Discloses Q3 2026 Operating Results via 8-K Filing

According to the filing, Westlake Corporation, a Delaware-incorporated company headquartered at 5444 Westheimer, Suite 101, Houston, Texas 77056, reported its 2026 third quarter results of operations and financial condition under Item 2.02 of Form 8-K. The company disclosed that a press release, furnished as Exhibit 99.1, contains the full details of those results. The filing does not itself reproduce specific financial figures; those are contained in the attached press release.

The filing also notes, under Item 7.01 Regulation FD Disclosure, that the company held a conference call on November 4, 2026, to discuss the 2026 third quarter results. The company additionally made available an investor presentation regarding those results, furnished as Exhibit 99.2. Both exhibits accompany the Current Report as furnished materials.

The filing states that the information furnished, including Exhibits 99.1 and 99.2, "shall not be deemed to be 'filed' for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed by Westlake Corporation under the Securities Act of 1933, as amended, unless specifically identified as being incorporated therein." The report was signed by Jean-Marc Gilson as President, Chief Executive Officer and Director on November 4, 2026.

What Was Disclosed

Westlake Corporation filed an 8-K on November 4, 2026, furnishing a press release and investor presentation covering its 2026 third quarter results. The specific financial figures are contained in the attached exhibits, not in the body of the filing itself.